Fix: chmod +x scripts/*.sh

Add `cd "$(dirname "$(readlink -f "$0")")/.."`
in order to ensure all scripts are run from root directory of project

Fix shebang for NixOS

scripts/fetch-docs.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Tag: yocto-4.3.3
 BITBAKE_DOCS_COMMIT=380a9ac97de5774378ded5e37d40b79b96761a0c
@@ -9,6 +9,7 @@ BITBAKE_DOCS_LIST="bitbake-user-manual-metadata.rst bitbake-user-manual-ref-vari
 YOCTO_DOCS_LIST=" tasks.rst variables.rst"
 
 set -e
+cd "$(dirname "$(readlink -f "$0")")/.."
 
 mkdir -p client/resources/docs
 #  Bitbake docs

scripts/update-tree-sitter-wasm.sh

@@ -4,6 +4,7 @@
 # Reference: https://github.com/bash-lsp/bash-language-server/blob/8c42218c77a9451b308839f9a754abde901323d5/scripts/upgrade-tree-sitter.sh
 
 set -euox pipefail
+cd "$(dirname "$(readlink -f "$0")")/.."
 
 cd client
 npm install -D tree-sitter-cli https://github.com/tree-sitter-grammars/tree-sitter-bitbake